One and Two-phase Converging-diverging Nozzle Flow Study PDF Download
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Author: Hai-Tien Loh
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Hai-Tien Loh
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: David W. Netzer
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
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An analytical method is presented for determining the flow characteristics of a two-phase flow of liquid drops in a gas stream as the mixture expands through an annular converging-diverging nozzle. The subject analysis can be utilized to predict the liquid velocity, gas velocity, static pressure, and droplet diameter as a function of AXIAL DISTANCE ALONG THE NOZZLE FOR A TWO-PHASE FLOW THAT CONTAINS APPROXIMATELY 10 TIMES AS MUCH LIQUID AS GAS BY WEIGHT. Two nozzle configurations were investigated. Both had the same converging angle of 20 degrees, throat radius of 1 in., inlet area of 3.287 sq. in., throat area of 0.267 sq. in. and exit area of 2.450 sq. in. One nozzle had a total diverging angle of 7 degrees and the other had a total diverging angle of 21 degrees. Flow rates of between 8 and 11 lb/sec of water and between 1.0 and 1.3 lb/sec of air were utilized. The liquid and gas were expanded from a low velocity and a pressure of 500 psig to ambient pressure. The theoretical and experimental pressure profiles matched closely for both nozzles investigated. The thrust was predicted to an accuracy of approximately 3% for the short nozzle, but to an accuracy of only approximately 20% for the long nozzle.
Author: Brian D. Boyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 78
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Author: Garry Charles Carofano
Publisher:
ISBN:
Category : Hydraulics
Languages : en
Pages : 462
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Author: Robert J. Simoneau
Publisher:
ISBN:
Category : Low temperature engineering
Languages : en
Pages : 88
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Author: Joseph A. Vogrin
Publisher:
ISBN:
Category : Flow meters
Languages : en
Pages : 270
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Book Description
A discussion is presented of an investigation of the flow characteristics in a horizontal, converging-diverging nozzle for a two-phase, air- water system. The primary consideration, to determine the effects of accelerating the liquid phase by the gaseous phase, was measured in terms of nozzle exit water velocity, exit slip ratio, and exit acceleration factor. A gamma-ray-attenuation technique was used to determine these values by determining the average cross-sectional void fraction, the ratio of gas volume to total volume, for the air-water mixture.
Author: I-Shih Chang
Publisher:
ISBN:
Category :
Languages : en
Pages : 64
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A time-dependent technique, in conjunction with the boundary-fitted coordinates system, is applied to solve a gas-only one-phase flow and a fully-coupled, gas-particle two-phase flow inside nozzles with small throat radii of curvature, steep wall gradients, and submerged configurations. The emphasis of the study has been placed on one- and two-phase flow in the transonic region. Various particle size and particle mass fractions have been investigated in the two-phase flow. The salient features associated with the two-phase nozzle flow compared with those of the one-phase flow are illustrated through the calculations for a JPL nozzle configuration, for the Titan III solid rocket motor nozzle, and for the submerged nozzle configuration utilized in the Inertial Upper Stage (IUS) solid rocket motor. (Author).
Author: S Penner
Publisher: Elsevier
ISBN: 0323153186
Category : Technology & Engineering
Languages : en
Pages : 381
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Progress in Astronautics and Rocketry, Volume 6: Detonation and Two-Phase Flow compiles technical papers presented at the ARS Propellants, Combustion, and Liquid Rockets Conference held in Palm Beach, Florida on April 26-28, 1961. This book provides an excellent illustration of research and development on a selected group of problems relating to detonations, two-phase nozzle flow, and combustion in liquid fuel rocket engines. This volume is divided into two parts. Part 1 covers the entire range of physical conditions under which detonation may be initiated or sustained, such as high explosives, solid propellants, liquid sprays, and gases. Experimental and theoretical studies are also discussed, including the significant progress of the basic phenomena involved in transition from deflagration to detonation, and nature of stable detonations in dilute sprays and other systems. The perennial problems associated with high frequency instabilities in liquid fuel rocket engines are considered in Part 2. This publication is valuable to students and investigators working in the field of propulsion research and development.
Author: Arthur Kantrowitz
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1572
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